Katherine Legge wins 2018 IMSA race in Detroit
Meyer Shank Racing's No. 86 Acura NSX GT3 exits Turn 2 during the 100-minute WeatherTech Championship race in Detroit. | Photo: Gannon Burgett / The Apex

Slowed by just one yellow flag, this year’s edition of the Chevrolet Sports Car Classic at the Raceway at Belle Isle Park featured 91 minutes of hard racing with Meyer Shank Racing’s Acura NSX GT3s finishing 1-2 in GT Daytona.

Bryan Sellers, who secured the pole position for the No. 48 Paul Miller Racing Lamborghini in Friday’s GTD qualifying, led the opening segment of the race with both MSR Acuras close behind in second and third.

After 36 minutes of time had elapsed on the clock, Katherine Legge moved into the class lead in the team’s part-time No. 86 Acura and never looked back. Justin Marks slotted in behind Legge in the No. 93 Acura, putting the duo ahead of the pole-sitting Lamborghini.

After driver changes, the Acuras continued at the front of the GTD field with drivers Mario Farnbacher and Lawson Aschenbach.

After 65 laps, Farnbacher brought the No. 86 to the finish line with a 10-second advantage over Aschenbach, delivering the second consecutive victory at Detroit for Legge and for the team. Last year’s victory marked the first win for the GT3-spec Acura in IMSA WeatherTech SportsCar Championship competition.

Aschenbach’s second-place finish gave MSR a better combined result than 2017 when the second car placed fifth.

Madison Snow held onto third to reward the Paul Miller team with a podium finish after starting from pole. Jeroen Bleekemolen and Jeff Segal completed the top five in the only GT class on hand in Detroit for Riley Motorsports and Scuderia Corsa, respectively.

The race’s only caution came 16 minutes after the green flag due to debris from the No. 15 Lexus RC F GT3 of David Heinemeier Hansson after it contacted the Turn 5 tire barrier. Too early for the GTD field to pit, the caution did force the cars to get back together for the restart nine minutes later. Legge moved her Acura into the lead 11 minutes after the green flag reappeared and only gave up during pit stops.

The GTD class will be in action July 1 at the 3.4-mile Watkins Glen International for the penultimate endurance round of the season.